That's good advice, Gene.
I have parallel 6 volt 1800 mah NiMh packs in my Venus II and my Excelleron 90 (both pattern planes). I have a sign le 1800 mah 6 volt pack in my Skylark, but that may change this year by adding parallel NEW 1800 mah LiFe packs to everything, well, almost everything..
CGr.